What is better fass or air dog lift pump fuel systems for a 7.3 ford powerstroke i have a bully dog triple dog chip and 4 inch straight pipe into 6 inch stacks and a k&n cold air intake and what size pump would i need a stock to moderate or a moderate to extreme i have no clue about these at all and if it helps im getting a bigger intercooler and a bigger turbo down the road

you dont need either for your setup.... what you need to do is this (im sure others will agree)

dump the K&N and either do the DIY intake or a better filtering intake like the S&B
get a custom burnt chip... its night and day diff from that BD stuff you have on...
get yourself some good gauges....

maybe after you do all that then you can upgrade your pump... but even then your stock injectors wont be able to handle it.. your going to have to spend some good coin on injectors, pump, and turbo... not to mention that if you have a auto truck your going to need to do a fully built trans to handle the power...

Raul is right unless you are running bigger injectors there is NOTHING to gain with a new fuel system. Between the two you mentioned Airdog would be my choiuce. Way to many problems with FASS, but you would be better off putting your cash elsewhere, OH and listen to what Raul is saying about chips, DP or TW will blow your Bull Puppy stuff out the door.

my buddy has a dp and he has a 7.3 and he dose not have as much power as me and i just dnt get y everyone says bully dog is no good whenever everyone has them and let me ask u this then what would be ur choice of chip for a 7.3 that would give u the most power and tourqe out of a 7.3 powerstroke motor on a 2002

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.